<!doctype html>
<html lang="en">
	<head>
		<meta charset="UTF-8">
		<title>two</title>
	</head>
	<body>
		<input id='prev' type="button"  value='<'/>
		

		<a href="three.html">跳转到three页面</a>
		<input id='next' type="button"  value='>'/>
		
		<script type="text/javascript">
			
				prev.onclick = function(){
					//history.back();
					history.go(-1);
				}	
				next.onclick = function(){
					//history.forward();
					history.go(1);
				}
			

		</script>
	</body>
</html>
